P0324 — Knock control system error

Code P0324 is a standard OBD-II diagnostic trouble code: Knock control system error.

In our record, P0324 is reported most often on Chevrolet and GMC vehicles , against engine and powertrain failure patterns , across 2010–2020 model years. Chevrolet alone accounts for 80% of them.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0324 across 5 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0324 5 patterns

2020 GMC Terrain

powertrain — Excessive oil consumption / Engine damage

2017 Chevrolet Silverado

engine — AFM/DFM Lifter Collapse

2015 Chevrolet Silverado

powertrain — Engine Knock, Lifter Ticking, and Misfire (AFM Related)

2014 Chevrolet Silverado

engine — Vacuum pump failure and metal debris in oil system

2010 Chevrolet Equinox

engine — Excessive oil consumption

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →